Denver International Airport (DEN) saw more than 4.2 million passengers in February, marking the 18th consecutive month of year-over-year passenger traffic increases in the Mile High City.

The February total of 4,204,744 passengers was about 3 percent higher than the 4,069,006 passengers in February of 2016, which is made even more impressive by the fact that last February included an extra day for leap year.

“Denver International Airport is off to a strong start for the early part of 2017, with impressive gains in passenger traffic that includes an almost 9-percent increase in international passenger traffic in February,” airport CEO Kim Day said. “We look forward to adding to those gains later this year with new, nonstop international service from Denver to London/Gatwick with our new partners at Norwegian.”

Lufthansa and Air Canada saw particularly strong gains in February, with year-over-year increases of 41 percent and 72 percent, respectively. Also in February, Southwest added nonstop service to Long Beach, Calif., which had been unserved from Denver since 2011.

Mail, freight and express cargo operations increased 5.5 percent in February, with 41,781,956 pounds, compared to 39,615,063 pounds of cargo in February 2016.